@misc{indiciae0237c6faa216,
  title = {U.S. mineral dependence—Statistical compilation of U.S. and world mineral production, consumption, and trade, 1990–2010},
  author = {James J. Barry and Grecia R. Matos and W. David Menzie},
  year = {2013},
  doi = {10.3133/ofr20131184},
  url = {https://pubs.usgs.gov/publication/ofr20131184},
  note = {Source identifier: ofr20131184}
}